Icon for a display screen



FIG. 1 is a front view of an icon for a display screen showing our newdesign; and,

FIG. 2 is an additional front view thereof, showing additional unclaimedsubject matter.

The broken line showing of the rectangular boxes in FIG. 2 and thedisplay screen forms no part of the claimed design.

The ornamental design for an icon for a display screen, as shown anddescribed.